I'm having an issue with the NVIDIA 180.xx series driver throwing the subject error.
This happens with XULRunner based apps, such as Firefox and Songbird. It looks like it may be related to LibGL.so. If I switch from the NVIDIA OpenGL interface to Mesa, while keeping the actual NVIDIA X driver, the apps load fine.
Just for fun, I compiled Firefox 3.1Beta2 with the QT toolkit and it loads without error. The GTK toolkit, however, crashes. Other GTK, including Firefox 2.x, work fine.